diff --git a/func/Module_resp_quality_label.py b/func/Module_resp_quality_label.py
index f96b22b..88a62ba 100644
--- a/func/Module_resp_quality_label.py
+++ b/func/Module_resp_quality_label.py
@@ -1121,7 +1121,7 @@ class MainWindow_resp_quality_label(QMainWindow):
         Config["Filter"]["BandPassHigh"] = self.ui.doubleSpinBox_fillterMode_custom_high.value()
 
     def toggle_home(self):
-        if Config["CurrentPartNum"] is None:
+        if Config["CurrentPartNum"] is not None:
             self.ax1.autoscale(True)
             self.ax1.relim()
             self.ax1.autoscale_view()